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Cheap flights from Washington, D.C. to Singapore from S$ 533

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20-8. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SIN
23 Apr — 30 Apr1
1 adult

Cheap flight deals from Washington, D.C. to Singapore

Keep the following information in mind while searching for Washington, D.C. to Singapore flight deals. Data was last updated 18 April 2025.

Round-trip from

S$ 1,312

One-way from

S$ 533

Popular in

December

Cheapest in

November

Average price

S$ 1,380
Turkish Airlines
  • Turkish Airlines
  • 15-9-26-9
  • 2 total stops
  • 56h 50m total
  • Washington, D.C. to Singapore
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Air India
  • Air India
  • 20-8
  • 1 total stop
  • 22h 45m total
  • Washington, D.C. to Singapore
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (S$ 48 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (S$ 84 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
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Find flight deals from Washington, D.C. to Singapore

Cheapest flights from Washington, D.C. to Singapore
Explore the most affordable flight options available from Washington, D.C. to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 April 2025.

Mon 15-921:40IAD - SIN
1 stop32h 15mTurkish Airlines
Fri 26-923:10SIN - IAD
1 stop24h 35mTurkish Airlines
Deal found 18-4S$ 1,312
Fri 2-513:30IAD - SIN
1 stop31h 15mMultiple Airlines
Wed 7-503:45SIN - IAD
1 stop24h 00mMultiple Airlines
Deal found 17-4S$ 1,318
Fri 19-911:00IAD - SIN
1 stop32h 30mAir India
Tue 23-909:00SIN - IAD
1 stop34h 40mAir India
Deal found 18-4S$ 1,330
Wed 21-522:19IAD - SIN
2 stops44h 46mAir Canada
Sun 8-609:10SIN - IAD
2 stops36h 31mAir Canada
Deal found 17-4S$ 1,360
Mon 28-411:54DCA - SIN
2 stops29h 36mCathay Pacific
Sun 11-501:50SIN - DCA
2 stops32h 25mCathay Pacific
Deal found 17-4S$ 1,380
Tue 16-912:55DCA - SIN
2 stops30h 10mAir Canada
Thu 25-906:15SIN - DCA
2 stops28h 19mAir Canada
Deal found 18-4S$ 1,416
Mon 28-421:00IAD - SIN
2 stops27h 55mQatar Airways
Mon 12-518:45SIN - IAD
1 stop25h 55mQatar Airways
Deal found 17-4S$ 1,438
Fri 10-1011:00IAD - SIN
1 stop22h 00mJetBlue
Sat 18-1003:10SIN - IAD
1 stop25h 00mJetBlue
Deal found 16-4S$ 1,448
Thu 18-922:05IAD - SIN
1 stop23h 35mEtihad Airways
Sat 27-921:10SIN - IAD
1 stop31h 00mEtihad Airways
Deal found 18-4S$ 1,490
Thu 18-919:17BWI - SIN
2 stops29h 18mMultiple Airlines
Wed 24-902:00SIN - BWI
2 stops40h 31mMultiple Airlines
Deal found 18-4S$ 1,518
Mon 15-918:50IAD - SIN
2 stops32h 55mSAUDIA
Mon 22-902:30SIN - IAD
1 stop25h 15mSAUDIA
Deal found 18-4S$ 1,545
Wed 7-521:40IAD - SIN
2 stops29h 10mEthiopian Air
Fri 23-502:00SIN - IAD
2 stops30h 05mEthiopian Air
Deal found 17-4S$ 1,555

Cheapflights Fare Finder

Customise your flight search to find flights from Washington, D.C. to Singapore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 200,618 searches. Data last updated 18 April 2025.
Use the filters below to find and compare flights from Washington, D.C. to Singapore that are best for you.

Fly from

Washington, D.C.

Fly to

Singapore

Route

Depart

Return

Price

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 15-9

21:40-17:55

1 stop32h 15m

Singapore Changi

Fri 26-9

23:10-11:45

1 stop24h 35m

S$ 1,312

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 2-5

13:30-08:45

1 stop31h 15m

Singapore Changi

Wed 7-5

03:45-15:45

1 stop24h 00m

S$ 1,318

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 19-9

11:00-07:30

1 stop32h 30m

Singapore Changi

Tue 23-9

09:00-07:40

1 stop34h 40m

S$ 1,330

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Wed 21-5

22:19-07:05

2 stops44h 46m

Singapore Changi

Sun 8-6

09:10-09:41

2 stops36h 31m

S$ 1,360

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Mon 28-4

11:54-05:30

2 stops29h 36m

Singapore Changi

Sun 11-5

01:50-22:15

2 stops32h 25m

S$ 1,380

Washington, D.C.Singapore

DCA - SIN

DCASIN

Washington, D.C. Reagan-National

Tue 16-9

12:55-07:05

2 stops30h 10m

Singapore Changi

Thu 25-9

06:15-22:34

2 stops28h 19m

S$ 1,416

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Mon 28-4

21:00-12:55

2 stops27h 55m

Singapore Changi

Sun 11-5

03:10-15:40

1 stop24h 30m

S$ 1,438

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Fri 10-10

11:00-21:00

1 stop22h 00m

Singapore Changi

Sat 18-10

03:10-16:10

1 stop25h 00m

S$ 1,448

Washington, D.C.Singapore

IAD - SIN

IADSIN

Washington, D.C. Dulles Intl

Thu 18-9

22:05-09:40

1 stop23h 35m

Singapore Changi

Sat 27-9

21:10-16:10

1 stop31h 00m

S$ 1,490

BaltimoreSingapore

BWI - SIN

BWISIN

Baltimore/Washington

Thu 18-9

19:17-12:35

2 stops29h 18m

Singapore Changi

Thu 25-9

13:45-06:31

2 stops28h 46m

S$ 1,518

Flights are sorted by cheapest return flights first.

Deals found on 17-4

Showing 1-10 of 60 results
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Best time to book a flight from Washington, D.C. to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Washington, D.C. with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Singapore

Rainfall in Singapore by month

Plan your trip to Singapore by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm.

Temperature in Singapore by month

Plan your trip to Singapore by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 26.0 C).

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated 18 April 2025.
Peruse reviews from past customers who have flown with Korean Air, Japan Airlines and ANA from Washington, D.C. to Singapore to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,064 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Crew

8.7

Overall

8.4

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,064 reviews
Korean Air
8.4
Very Good
1,064 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Crew

8.7

Overall

8.4

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Japan Airlines
8.3
Very Good
1,447 reviews
Korean Air
8.4
Very Good
1,064 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Crew

8.7

Overall

8.4

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
ANA
8.3
Very Good
845 reviews
Korean Air
8.4
Very Good
1,064 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Crew

8.7

Overall

8.4

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.2
Very Good
729 reviews
Korean Air
8.4
Very Good
1,064 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Crew

8.7

Overall

8.4

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Singapore Airlines
8.1
Very Good
1,289 reviews
Korean Air
8.4
Very Good
1,064 reviews
Check prices

Entertainment

8.2

Comfort

8.3

Crew

8.7

Overall

8.4

Food

8.1

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Washington, D.C. to Singapore one-way?

    For one-way options, check prices for Air India. According to our data, you can fly for as low as S$ 533. Users have also found prices from S$ 672 and S$ 820 on Cathay Pacific and SAUDIA, respectively.

  • What are the most popular routes from Washington, D.C. to Singapore?

    Most travellers choose Washington, D.C. Reagan-National - Singapore Changi, Baltimore/Washington - Singapore Changi or Washington, D.C. Dulles Intl - Singapore Changi when deciding on the best route from Washington, D.C. to Singapore.

  • Can I find deals for flights from Washington, D.C. to Singapore that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Singapore flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Singapore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Singapore.

  • Can I find deals for business class flights from Washington, D.C. to Singapore?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Washington, D.C. to Singapore

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Singapore flights

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Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Singapore from Washington, D.C. today and book when prices fit your budget.

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